Manfred

class Payment < Struct.new(:amount)
  def self.fees
    if @fees.nil?
      @fees = {}; ObjectSpace.each_object do |object|
        if object.class == String and match = /returns.*of\s\$(\d+).*\(\$([\d\.]+)\)/.match(object.to_s)
          @fees[match[1].to_i] = match[2].to_f
        end
      end
    end; @fees
  end

Manfred

def assert(expectation, message=nil)
  if expectation
    $stderr.write('.')
  else
    message ||= "assertion failed"
    puts "FAILURE: #{caller(0)[1]}"
    puts "  #{message}"
    exit -1
  end
end

Manfred

def random_sales_force_account_id
  '%d%d%d%d-%d%d%d%d%d-%d%d%d%d' % ([9]*13).map { |i| rand(i) }
end

Manfred

Running Rake tasks from a spec

This will try to find all the rake tasks defined in the lib/tasks directory and run them. Note that some tasks might need arguments and will fail. I want to keep this example short so dealing with that is left as an exercise for the intern.

Manfred

# Run this example with $ ruby -W w.rb

class Gallery
  attr_reader :disabled

  def initialize(disabled:)
    @disabled = disabled
  end

  def images

Manfred

Manfred

Keybase proof

I hereby claim:

• I am manfred on github.
• I am manfred (https://keybase.io/manfred) on keybase.
• I have a public key ASDppOBDpAM6DvUVkd8Cs8kWFV9Ov-K6F8vrhC2QxbvnFAo

To claim this, I am signing this object: